You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality.

Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!

Say hello and join the conversation

Subscribe to topics and forums to get automatic updates

Get your own profile and make new friends

Classifieds with all sorts of Subaru goodies

Photo hosting in our gallery

Meet other cool people with cool cars

Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning** Not an actual guarantee, but seriously, you probably won't regret it!

valve sizes, stock cam info

I'm playing around with Desktop Dyno, and I want to test the accuracy of the program. however I need the valve sizes and cam lift, duration, timing etc in order to complete the tables. I'm using the ej25 bock as a base and changing the bore/stroke etc down to 1.8l. Right now I'm modelling an ea82 spfi motor, but turbo info or ea81 info would be great too. I've found some delta cams slips from the cams thread, so i've been getting away with that and some guestimates on valve sizes. info on the cfm of the stock fuel system would be good but I'm guessing about 250-300 right now.

bump! This program is fun. I just created an ea82t with 500hp! The turbo modelling is really inaccurate, but its great at modelling cams and head designs. I also made a 6.0l lambo v12 with 1200hp and 1500lb-ft of torque With my guesstimate valve sizes and cam design a stock ea82 spfi makes 90hp at 4000 and 125lb ft of torque at 3500 which isnt too far off.

the program is actually called desktop dyno 2000, I got it off Kazaa. It's an engine building program that gives you a virtual dyno read-out based on all sorts of info. Basically if you put the correct numbers in on a v8 build it should be within 5% or less of the actual output. For import motors its not so good, because it doesnt allow for different valvetrain designs (sohc/dohc etc) and its forced inuction modelling sucks (Lowering the cfm on the turbo will increase hp drastically to the point where your at 5cfm and you have 5000hp ) Engines don't blow up in this sim, and the gasoline never detonates so you can run a turbo on 20:1 compression for some crazy power. I tried putting one of the delta cams measurements in and the dyno program didnt like them... I'd trust delta before desktop dyno though